I need to replace an old EM57580 120V 60H Class 2 LR90668 transformer for my two doorbells. Is this a replacement for that? Is 30 watts too much?
5066
I have not yet installed my NuTone C907 (30W), but I from what I have read, this transformer should have sufficient power to ring 2 doorbell chimes simultaneously. My system will have just 1 doorbell button (at the front door), which will be connected to 2 separate doorbell chimes (on different floors in the house). Hope this helps.
5067
This transformer is what you are looking for. The watts is only a worry if not enough on this type of transformer. When the Door Bell is pushed the transformer has a load placed on it of what ever the chimes require to be accuated/rung. So check what each chime in your 2 chime system require and that will tell you if 30 watts is enough for the system u have or are interested in installing.
5068
i used this on three bells .kitchen basement garage. if you got 1 bell 16 watt is plenty
5069
I 'm using this one for 2 door bells and it's work's great. The door bells will only use the powered needed. You won't go wrong buying this one.
1976849
It should work. Just make sure that the bulbs draw at least 50 Watts combined or the transformer will not work. Maximum is 150 Watts.
964250
model ud35141200306, input is 120v ac 60hz 8.5w, output is 12v dc 300ma, class 2 transformer. made by Helma-Man
1035666
http://logitech-en-emea.custhelp.com/cgi-bin/logitech_en_emea.cfg/php/enduser/std_adp.php?p_faqid=6777&p_created=1178803712&p_sid=x9XBZqhj&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPSZwX3NvcnRfYnk9JnBfZ3JpZHNvcnQ9JnBfcm93X2NudD00OTksNDk5JnBfcHJvZHM9JnBfY2F0cz0mcF9wdj0mcF9jdj0mcF9zZWFyY2hfdHlwZT1hbnN3ZXJzLnNlYXJjaF9ubCZwX3BhZ2U9MSZwX3NlYXJjaF90ZXh0PVMyMjAgU3BlYWtlciBTeXN0ZW0*&p_li=&p_topview=1 I don't know, but the Logitech site seems to suggest that they might with a fuse replacement. The 220v and 110v systems do appear to be different hardware, though, as indicated by the different fuse. I would definitely contact Logitech before making any changes/before jacking them into anything but a stepdown transformer.
913063
You can use the 120 volt transformerÇÑ±¹¿¡¼­ »ç¿ëÇÏ½Ã¸é 120º¼Æ®º¯¾Ð±â¸¦ ±¸ÀÔÇÏ¼Å¼­ »ç¿ëÇÏ½Å¸é ¹®Á¦¾øÀÌ ÀÛµ¿ÇÕ´Ï´Ù
442818
It has two 120 volt primary windings and two 12 volt secondary windings. I used one to replace a bell transformer. I connected the primary windings in series and connected the secondary windings in series. This minimized the core loss, but, reduced the rating to 15 volt amps; which is plenty for a bell transformer. I have the 120 volt side fused at about 1/8 amp slow blow. See avellindberg.com.
626200
I use a cheap Transformer 230 to 120 Volt, 100 Watt. This was the most bargain Solution.
571782
Hi,I'm in France and I use this model with a transformer. I have a 1000W and it works fine, but less is also ok. Since this is 3 amp, then calculate power required as 3 amp * 110V = 330 W. So a 500W transformer is ok.
1269935
My first thought is that the transmitter uses the power when the doorbell unit is energized from the transformer power. This happens when the doorbell button switch is closed to complete the circuit. If the transmitter was wired in series with the transformer, I don't think the doorbell will work due to a high impedance required. Wiring in parallel with the transformer also would not work, since at that location, the power is always present. However, not having tried this, I can only speculate at this point.
1761745
I really won't be able to answer information on the transformer. I have not need to use one so far. I suggest that you check the requirements on package or manufacturer website for further info on the transformer.
2024821
Just buy a stepdown transformer at least 2000 watts in the Philippines, we are 60hz the freq is a non-issue.
2233789
I think so, it's a very good transformer. If you are using a 1800 or lower, I think is perfect. If you are using a more than 1800 watt, I think will be better to order the 3000 watt
1703408
I thought about laying down some Ohm's Law, and the (current squared x resistance) heat loss thing, sorry. Lets just say that devising a step-up transformer circuit would be impractical, expensive, and maybe illegal in most jurisdictions. Having a 220/240V - 20 amp receptacle Installed or buying a 110V unit are your only choices.
1239211
This can be a hard question to answer as it truly depends on what your home has already. The short answer is, if you are replacing an existing wired doorbell this kit should include everything you need. If you are installing this wired doorbell where one did not exist before you will also need a transformer.
1211996
hello: I have a separate circuit at 120 volts and it's still working fine. I don't think you can use 220 on the unit. The 120 only supplies the power board only and then the transformer changes all the power circuit to 12 volts.
2090979
If your total wattage is 300 watts, I would go with a transformer that has a higher capacity than 300 watts or use multiple transformers. The pros recommend leaving at least a 10% leeway. Alternatively, convert to LED bulbs in your fixtures, which would draw considerably less wattage and save power.
1257007
I switched from the lamps to the LED units and used the old transformer from the initial installation. Obvious much larger than necessary since these LED's are rated at 2 watts. A smaller transformer of 40 watts will work fine with plenty of reserve to add more fixtures.